Ship s berth



S. SHAW.

SHIPS BERTH.

. Patented July 5,1881.

(No Model.)

UNITED STATE PATE T OFFICE.

SUMNER SHAW, OF BOSTON, MASSACHUSETTS.

SHIPS BERTH.

SPECIFICATION formingpart of Letters Patent No. 243,983, dated July 5, 1881. Application filed March 21, 1881. (No model.)

To all whom it may concern:

Be it known that I, SUMNER SHAW, a citizen of the United States, residing at Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Berths and Live-Stock Pens on Board Ships; and I do hereby declare that the same are fully described in the following specification and illustrated in the accompanying drawings.

This invention relates to improvements in berths and live-stock pens on board of ships, in which the berth or pen is suspended from a frame or parts of the ship by inclined chains, ropes, or rods fastened to the sides or top of the berth or pen in such a manner that a space is left between it and the frame or part of ship from which it is suspended sufficient to allow 7 it to move enough to overcome the fore-andaft motion of the ship. The berth or pen is further supported and stayed by a rope or chain passing under it and through two or more pulley-blocks secured firmly to the bottom of the berth or pen. The ends of said rope or chain are firmly secured to the same frame or part of the ship as the inclined-chains before mentioned.

The object of this invention is to allow the berth or pen to remain nearer level than those now in use, and it is carried out as follows, reference being had to the accom pan yin gdrawings, on which- Figure 1 represents a plan, Fig. 2 a central longitudinal section, and Fig. 3 an end elevatiou, of my invention.

Similar letters refer to similar parts whereever they occur on the different parts of the drawings.

it represents a berth or pen suspended from the frame b by means of the ropes, chains, or rods 0 c 0 0, fastened at their upper end to eyebolts or rings I) I) b I) on the frame b, said bolts or rings being placedin a horizontal line a little distance apart. The lower ends of the chains, ropes, or rods 0 0 00 are fastened to eye-bolts or rings a a a" a on the berth or pen it, placed about twice the distance apart that the bolts or rings '1) b b b are, and in such a manner that when the ship, rolls the berth or pen a remains level or nearly so. The object of using two or more inclined chains, ropes, or rods, 0 0 c c, on each end of the berth or pen a, fastened at different places on the frame 12 or part of ship, is to prevent said.

berth or pen from canting or tipping, as it would if only one chain or fastening-place was used, provided it was loaded heavier on one side than on the other; also to prevent the berth or pen from being carried too far to one side, which would be liable to freight the ship too heavily on one side in a heavy sea. 1

(1 represents a rope or chain extending from one side to the other of the frame I), under the berth or pen a, and through two or more pulley-blocks, e e e a, secured to the bottom of the berth or pen'a. The ends of the chain or rope d are fastened to the eye bolts or rings ff on the frame I), which bolts or rings are located about one-half the distance below the line of the bolts or rings 1) b b b that said bolts or rings 1) b b I) are apart. The object of the rope or chain d is to prevent any sud den jerking of the berth or pen caused by the rolling of the ship, and also to help hold the berth or pen a from moving far enough to one side to careen the ship, and to provide an easy motion fore and aft by the pulleys c e e a mov ing on the chain or rope d.

g g represent rubber buffers, attached to the frame I) or part of ship a little above the line of the bottom of the berth or pen a, to cushion the berth or pen a in a very heavy sea.

The manner in which the inclined chains 0 c c 0 are attached to the frame I) or part of ship allows the ship to rise and fall fore and aft without imparting the same motion to the berth'or pen A.

What I wish to secure by Letters Patent and claim is- .1. In a ships berth or live-stock pen the chains, ropes, or rods 0 0 c 0, attached in their lower and upper ends, respectively, to independent points of the berth and upper support, the pulleys e c e e, and rope or chain (1, supported at the ends and passing by said pulleys, as and for the purpose set forth and described.

2. In combination with a ships berth or live-stock pen, the supporting chains, ropes, or rods 0 c c c, the pulleys e e e e, and rope or chain d, supported at the ends and passing by said pulleys, as and for the purpose set forth and described. 1

In testimony whereof I have affixed my signature in presence of two witnesses.

SUMNER SHAW.

Witnesses:

HENRY CHADBOURN, JOHN H. Fos'rER; 

